<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../vue.js"></script>
</head>
<body>
    <div id="app">
        <form action="javascript:;">
            <select name="food" v-model="food"> 
                <option value="宫保鸡丁">宫保鸡丁</option>
                <option value="凉拌西红柿">凉拌西红柿</option>
                <option value="怪味豆">怪味豆</option>
                <option value="...">...</option>
            </select>

            

            <select name="city"  v-model="city"  multiple>
                <option value="宫保鸡丁">宫保鸡丁</option>
                <option value="凉拌西红柿">凉拌西红柿</option>
                <option value="怪味豆">怪味豆</option>
                <option value="...">...</option>
            </select>
        </form>
    </div>
    <script>
        new Vue({
            el:"#app",
            data(){
                return{
                    food:[],
                    city:[]
                }
            }
        })
    </script>
</body>
</html>